一、关于手机发明和用途的英语作文

Before the devices that are now referred to as mobile phones existed, there were some precursors. The development of mobile telephony began in 1918 with tests of wireless telephony on military trains between Berlin - Zossen. In 1924 public trials started with telephone connection on trains between Berlin - Hamburg. In 1925 Zugtelephonie A. G. is founded to supply train telephony equipment[8] and in 1926 telephone service in trains of the Deutsche Reichsbahn and imperial post on the route between Hamburg and Berlin is approved and used.[8] This phone service was only offered to 1st class travelers, but in 1918, some 5 years after the invention of Meißnerischen tube based transmitters, the German Reichsbahn in Berlin led experiments with telephony via radio.The first mobile telephone calls were made from automobiles in 1946. The Bell System's - Mobile Telephone Service - inaugural call was made on 17 June of that year in St. Louis, Missouri, followed by Illinois Bell Telephone Company's car radiotelephone service in Chicago on 2 October. The MTS phones were composed of vacuum tubes and relays, and weighed over 80 pounds (36 kg). There were initially only 3 channels for all the users in the metropolitan area, increasing later to 32 channels across 3 bands. This service continued into the 1980s in large portions of North America. Due to the small number of radio frequencies available, the service quickly reached capacity. In 1956, the world's first partly automatic car phone system, Mobile System A (MTA), was introduced in Sweden.Mobile phones are used for a variety of purposes, including keeping in touch with family members, conducting business, and having access to a telephone in the event of an emergency. Some people carry more than one cell phone for different purposes, such as for business and personal use. Multiple SIM cards may also be used to take advantage of the benefits of different calling plans—a particular plan might provide cheaper local calls, long-distance calls, international calls, or roaming. The mobile phone has also been used in a variety of diverse contexts in society. Today you can hardly find someone without a mobile phone.。

二、英语作文myfavoriteinvention不少于80字mobile英语作文

my favorite invention mobile phoneWith the development of advanced science and technology,more and more modern inventions have appeared.Of all of them,I like mobile phone best.I think it is the most amazing invention in the 21st century.Mobile phone is small and light.It can make us call people wherever we are.What's more,people can use it to read books,surf the Internet ,play the games and so on..Meanwhile,people don't need to worry about forgetting something important because of the mobile phone.Nowadays,more and more people afford to buy mobile phones.It's hard to imagine the life without mobile phones.。

三、英语作文关于手机的发明介绍80字还要带语文翻译

My favorite inventionIn our life,there are many great inventions,such as the light,the pencil,the bag。

At the age of 6,my father brought a car,he took me to school on the first day of school.It was so exciting.I fell in love with this invention on that day.The car can go anywhere and save time,but it also pullutes our environment.I holp I can invent "clean" cars.I hope the cars will enter every family,and I love cars best.翻译我最喜欢的发明在我们的生活中，有许多伟大的发明，如光、铅笔、包……6岁时，我父亲用一辆车，带我在去学校的第一天.这是如此令人兴奋.那天我爱上了这项发明.汽车可以去任何地方，节省时间，但它也污染我们的环境.我帮助我能发明“干净”的汽车.我希望汽车将进入每一个家庭，我最喜欢的汽车.。

四、写一篇关于手机的发明和用途,还有对我们生活的影响的英语作文

Advantages and Disadvatages of Mobile phones

As every body knows, mobiles are playing a important part in our daily life nowadays.But they have bot advantages and disadvtanges in my opinion.

First, mobiles make it convinent for people to keep in touch with each other whevere they are.Especially when they have something important.It reduces the cost for people dont have to travel a long way to get to know the things in person

Second,we can send messages by mobiles with little money,just 0.01 yuan for each short message.

third, we can also play games or take photoes or listen to music on the mobiles,late we do many things on them with the development of technology.

But they also have many disadvatages.we have to pay for the wrong numbers which are not for us.The radioactivites may do harm to our health.Sometimes the rings may affect others in public or at meetings

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五、关于手机发明的时间是怎样被发明的,手机的用途的英语作文80字

This concept phone early in the 1940s appeared. Was the nation's largest communications company Bell Labs began trial. In 1940, Bell Labs made the first so-called mobile phone. April 1973, the famous American company Motorola engineering technician "Martin Cooper" invented the world's first mobile phone to the civilian. When Cooper played through the world's first mobile phone, he can use any of the electromagnetic spectrum. In fact, the first generation analog phones rely on different frequencies to distinguish between different users of different mobile phones. The second-generation mobile phone --GSM system is extremely small by the user to distinguish the difference. Today, frequency resources are obviously insufficient, mobile phone users also exponentially growing rapidly. Thus, updated by different codes to distinguish different CDMA technology machine came into being. The application of this technology, mobile phone is not only better call quality and confidentiality, but also to reduce the radiation, can be regarded as "green phone." Now, in addition to phone calls with mobile phone functions, but also provides users with enough screen size and bandwidth, which is easy to carry, but also for software and content services provide a broader stage. Many value-added services can be embarked on, such as: stocks, news, weather, traffic, commodities, application downloads, music and picture downloads and more.。

六、有没有关于发明家的英语短文

这样可以吗？ Newton was one of the greatest English scientists。

He worked very hard and often forgot his breakfast。 One morning Newton got up early and he thought about a very hard physics problem。

He forgot to go to have his breakfast。 Mary, his servant went to his study and was going to boil an egg for him。

But Newton did not want any noise。 He said “Can you leave the egg to me? I'll boil the egg myself。”

Mary put the egg on the table by Newton's watch and left the room。 An hour passed。

Mary was afraid Newton would forgot to boil the egg。 So she came back to Newton's study。

What did she find? She found Newton boiling the watch and the egg was on the table。 He was still thinking hard。